For the pair of functions, find the indicated domain.f(x) = 4x + 28, g(x) = x + 2Find the domain of f ? g.
A. (-?, ?)
B. (-?, -9) ? (-9, ?)
C. (-?, -9] ? [-9, ?)
D. (-?, 9) ? (9, ?)
Answer: A
Mathematics
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Use DeMoivre's Theorem to write the expression in rectangular form.
3
A. 4
- 4
i
B. -4
- 4
i
C. 4
+ 4
i
D. -4 - 4
i
Mathematics
Identify the equation as either an identity or not.
= tan t
A. Not an identity B. Identity
Mathematics
Find the quotient.-168 ÷ (-7)
A. 
B. 14
C. 24
D. -24
Mathematics
Solve the problem.A box with an open top is to be constructed from a rectangular piece of cardboard with dimensions 14 inches by 20 inches by cutting out equal squares of side x at each corner and then folding up the sides as in the figure. Express the volume V of the box as a function of x.
A. V(x) = x(14 - x)(20 - x) B. V(x) = x(14 - 2x)(20 - 2x) C. V(x) = (14 - x)(20 - x) D. V(x) = (14 - 2x)(20 - 2x)
Mathematics